4.02% is the change from 597 to 621
Calculation steps:
[( 621 - 597 ) ÷ 597] x 100 = 4.02%
Formula
Percentage change = [(621 - 597) / 597] x 100
Subtract the new number by the original number
621 - 597 = 24
24 ÷ 597 = 0.04020100502512563
0.04020100502512563 x 100 = 4.02%